$cordovaFile.readAsArrayBuffer giving "ENCODING_ERR"

ionic-v1
1

I’m trying to use $cordovaFile.readAsArrayBuffer but I’m getting the following error

I tried some solutions from the forum but without success

function getFileBlob(url, cb) {
console.log(url);
var path = url.substring(0, url.lastIndexOf('/') + 1);
var filename = url.substring(url.lastIndexOf('/') + 1, url.length);
console.log('path', path);
    console.log('file', filename);
    $cordovaFile.readAsArrayBuffer(path, filename)
    		.then(function (success) {
    		    var blob = new Blob([success], { type: 'image/jpeg' });
    		    cb(blob);
    		}, function (error) {
    			onsole.error(error);
    			cb(null);
    		});
 }

Error:
FileError code:5, message:“ENCODING_ERR”

My url: /file:///storage/emulated/0/Android/data/com.ionicframework.paypad443164/cache/.Pic.jpg
var path: /file:///storage/emulated/0/Android/data/com.ionicframework.paypad443164/cache/
var file: .Pic.jpg

Where am I going wrong?